Thread.Sleep与Task.Delay的区别

using System

using System.Threading;

namespace ThreadTest

  ...{

 public class A
    ...{
        public static void B()
        ...{
            while (true)
            ...{
                Console.WriteLine("A.B is running in its own thread.");
            }
        }
    }

    public class C
    ...{
        public static void Main()
        ...{
            Thread t = new Thread(new ThreadStart(A.B));
            t.Start();
            Thread.Sleep(5);
            t.Abort();
            t.Join();
            Console.WriteLine("A.B has finished");
            Console.ReadLine();
        }
    }

}

		

          //    Thread.Sleep是同步延迟, Task.Delay异步延迟;
          //    Thread.Sleep不能取消，Task.Delay可以。
            Task.Run(async () =>
            ...{
                //将任务延迟1000毫秒后运行，如果无限等待那么指定为-1
                await Task.Delay(1000);
                Console.WriteLine("Task Start");
                //CancellationToken设置为true就是标志Task任务取消，为false和 await Task.Delay(1000)一样将任务延迟3000毫秒后运行
                await Task.Delay(1000, new CancellationToken(true));
                Console.WriteLine("这里不会被执行，因为任务取消了~");  
            });